Diff: RTC8564.cpp

Revision:

0:ed1f619f1794

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RTC8564.cpp	Wed Jun 20 04:09:39 2012 +0000
@@ -0,0 +1,61 @@
+#include "mbed.h"
+#include "RTC8564.h"
+
+void RTC8564::write(char address, char value)
+{
+    i2c.start();
+    i2c.write(RTC8564NB_ADR);
+    i2c.write(address);
+    i2c.write(value);
+    i2c.stop();
+}
+
+char RTC8564::read(char address)
+{
+    char value;
+    i2c.start();
+    i2c.write(RTC8564NB_ADR);
+    i2c.write(address);
+    i2c.start();
+    i2c.write(RTC8564NB_ADR | _READ);
+    value = i2c.read(0);
+    i2c.stop();
+    
+    return value;
+}
+
+void RTC8564::time_just()
+{
+    char _min, _hour;
+    _min = read(MINUTES);
+    if (_min >= 0x30) { 
+            _hour = read(HOURS);
+            if (_hour == 0x23)
+                _hour = 0x00;
+            else if ((_hour & 0x0F) == 0x09)
+                _hour = (_hour & 0xF0) + 0x10;
+            else
+                _hour = _hour + 0x01;
+            write(HOURS, _hour);
+    }
+    write(MINUTES, 0x00);
+    write(SECONDS, 0x00);
+}
+
+
+void RTC8564::setdaytime(char y[3], char m[3], char d[3], char h[3], char min[3], char s[3], char week_val[2])
+{
+    write(CONTROL1, 0x20); //stop
+    write(CONTROL2, 0x00);
+    write(YEARS, ((y[0]-0x30)<<4)+(y[1]-0x30)); 
+    write(MONTHS, ((m[0]-0x30)<<4)+(m[1]-0x30));
+    write(DAYS, ((d[0]-0x30)<<4)+(d[1]-0x30));
+    write(HOURS, ((h[0]-0x30)<<4)+(h[1]-0x30));
+    write(MINUTES, ((min[0]-0x30)<<4)+(min[1]-0x30));
+    write(SECONDS, ((s[0]-0x30)<<4)+(s[1]-0x30));
+    write(WEEKDAYS, week_val[0] - 0x30); //Sunday = "0", Monday = "1" ...
+    write(CLOCKOUT_FREQ, 0x00); // 0x83 = TE on & 1Hz
+    write(TIMER_CONTROL, 0x00);
+    write(CONTROL1, 0x00); //start
+    return;
+}
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